
.nav1{
    width: 1200px;
    margin: 0 auto;
    list-style: none;
    margin-left: 100px;
}

.border1:last-child{
    border-right:none;
}
.nav1 li{
    float: left;
    line-height: 40px;
}
.nav1  a{
    display: block;
    height: 40px;
    background-color: #fff;
    text-decoration: none;
    color: #777777;
    padding: 0 30px 0 30px;
}
.nav1 a:hover{
    background-color:#f882a5;
    color: red;
}
.nav2{
    position: absolute;
    width: 200px;
    display: none;
}
.nav1 li:hover .nav2 ,.nav2 li:hover .nav3,.nav2 li:hover .last{
    display: block;
}
.nav3{
    position: absolute;
    width: 130px;
    left: 100px;
    /*菜单上移一格*/
    margin-top: -48px;
    display: none;
}
.last{
    position: absolute;
    width: 200px;
    right: 100px;
    margin-top: 40px;
    display: none;
}

